<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>叠加</title>
	<style>
		body{
			color: red;
		}

		.nav{
			color: red;
		}
		
		.title{
			color: green!important;
		}


		p{
			color: blue;
		}
		/*#one{
			color: yellow;
		}
		body #one{
			color: red;
		}*/
	</style>
</head>
<body>
	<p class="title nav" style="color: blue" id="one">学并思</p>
</body>
</html>